Riveting machine

ABSTRACT

A riveting machine includes a male mold having a punch and a pair of abutting bars located proximate the punch, a female mold having a positioning pin aligning with the rivet, a mounting member slidably attached to the male mold along a vertical direction, a pair of moving members slidably attached to the mounting member along a horizontal direction, and a pair of clamping members respectively and slidably attached to the moving members and located between the moving members. A pair of first slanting guiding walls is respectively formed at the moving member and the corresponding clamping member to allow the clamping member to slide relative to the corresponding moving member, and a pair of second slanting guiding walls is respectively formed at the moving members and the abutting bar to allow the moving member to slide relative to the corresponding abutting bar.

FIELD

The subject matter herein generally relates to a riveting machine.

BACKGROUND

Rivets are manually positioned in riveting holes of work pieces to be riveted by riveting machines, which is inefficient.

BRIEF DESCRIPTION OF THE DRAWINGS

Implementations of the present technology will now be described, by way of example only, with reference to the attached figures.

FIG. 1 is an exploded, isometric view of an embodiment of a riveting machine.

FIG. 2 is an exploded, isometric view of the riveting machine of FIG. 1, but viewed from another angle.

FIG. 3 is an assembled, isometric view of FIG. 1.

FIG. 4 is an isometric view of the riveting machine of FIG. 3 together with a rivet and a work piece.

FIG. 5 is a partial, cutaway isometric view of FIG. 4.

FIG. 6 is a cross sectional view of FIG. 5, taken along line VI-VI.

FIG. 7 is similar to FIG. 6, showing the riveting machine in a first working state.

FIG. 8 is similar to FIG. 6, showing the riveting machine in a second working state.

FIG. 9 is similar to FIG. 6, showing the riveting machine in a third working state.

FIG. 10 is similar to FIG. 6, showing the riveting machine in a fourth working state.

DETAILED DESCRIPTION

It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein may be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein.

Several definitions that apply throughout this disclosure will now be presented.

The term “substantially” is defined to be essentially conforming to the particular dimension, shape or other word that substantially modifies, such that the component need not be exact. For example, substantially cylindrical means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like.

The present disclosure is described in relation to a riveting machine.

FIGS. 1-2 illustrate an embodiment of a riveting machine 100. The riveting machine 100 comprises a female mold 20, a male mold 50, and a positioning apparatus 60.

The female mold 20 comprises a positioning pin 21 located substantially perpendicular to a bottom surface thereof. The positioning pin 21 comprises a tapered distal end 23. In at least one embodiment, the positioning pin 21 is a resilient thimble.

The male mold 50 comprises an installing hole 511 defined in a middle of a top surface thereof for receiving a punch 80 therein, a pair of connecting holes 515 proximate the punch 80 for receiving a plurality of resilient members 68 therein, and two mounting holes 513 located at two opposite sides of the installing hole 511 for receiving a pair of abutting bars 90 therein. A resilient member 85 (shown in FIG. 6) is received in the installing hole 511. The resilient member 85 is sandwiched between the punch 80 and the male mold 50. Two slanting guiding walls 91 slantingly extend down from a top surface of the abutting bar 90, opposite to each other.

The positioning apparatus 60 comprises a mounting member 61, two moving members 63, two clamping members 65, two first resilient members 66, and two second resilient members 67.

The mounting member 61 comprises a frame 612 and two brackets 615. A middle of the frame 612 defines a substantially rectangular opening 6121. A top surface of the frame 612 defines a plurality of the fastening holes 6123 located at two opposite sides of the rectangular opening 6121. Each bracket 615 is substantially U-shaped and comprises a connecting bar 6151 and two extending bars 6153 extending substantially perpendicular out from two opposite ends of the connecting bar 6151. The connecting bar 6151 and the extending bars 6153 cooperatively bound a receiving slot 6154. A bottom side of an inner surface of each extending bar 6153 defines a guiding slot 6155 extending along a longwise direction of the extending bar 6153. The guiding slot 6155 communicates with the receiving slot 6154. A middle of an inner surface of each connecting bar 6151 defines a blind hole 6156 communicating with the receiving slot 6154. A top surface of each extending bar 6153 defines a plurality of countersunk holes 6157 extending through a bottom surface of the extending bar 6153.

Each moving member 63 comprises a first block 631 and a second block 633.

Each first block 631 is rectangular and comprises two sliding bars 6315 extending perpendicular from lower portions of two opposite end walls thereof, and a T-shaped guiding hole 6311 extending through a top wall and a bottom wall thereof. The guiding hole 6311 also extends through a first sidewall of the first block 631 and forms a cutout 6318 in the first sidewall. A slanting guiding wall 6310 is formed at an inner side of the guiding hole 6311 away from the cutout 6318, and extends from a middle of the top wall toward the cutout 6318. A sliding hole 6317 is defined in the slanting guiding wall 6310 opposite to the cutout 6318, and extends through the top wall and the bottom wall of the first block 631. A plurality of mounting holes 6319 is defined in the top wall of the first block 631 surrounding the guiding hole 6311. A middle of a second sidewall of the first block 631 opposite to the cutout 6318 defines a fixing hole 6312. A bottom wall of the first block 631 defines a positioning slot 6313 extending through the sliding bars 6315 of the first block 631 adjacent to the sliding hole 6317.

Each second block 633 comprises two tabs 6323 protruding up from a side of a top wall thereof. A junction of a bottom wall of the second block 633 and a side wall of the second block 633 away from the tabs 6323 forms a slanting guiding wall 6335. A middle of the side wall of the second block 633 defines a substantially semi-cylindrical cutout 6336 extending through the slanting guiding wall 6335. A middle of the top surface of the second block 633 defines a locating hole 6338. The top surface of the second block 633 defines a plurality of through holes 6337 located around the locating hole 6338.

Each clamping member 65 comprises a clamping block 651, and a guiding plate 653 substantially slantingly mounted at one end of the clamping block 651. The guiding plate 653 comprises a slanting guiding wall 6535 formed at a side opposite to the clamping block 651. A sliding block 655 protrudes out from an outer surface of the slanting guiding wall 6535. The clamping block 651 defines a substantially semi-cylindrical opening 6511 in a lower portion thereof and opposite to the sliding block 655, and an arc-shaped clamping hole 6513 in an upper portion thereof located above the opening 6511 and communicated with the opening 6511. A bottom end of the guiding plate 653 is closer adjacent to the opening 6511 than a top end of the guiding plate 653.

In at least one embodiment, each first resilient member 66, each second resilient member 67, and each resilient member 68 are springs.

FIG. 3 illustrates an assembled embodiment of the riveting machine 100. A top surface of each clamping member 65 is located below the bottom surface of the corresponding first block 631. Each clamping member 65 is inserted into the corresponding first block 631, to slide the clamping block 651 in the cutout 6318, and to slide the sliding block 655 in the sliding hole 6317. The slanting guiding wall 6310 of each first block 631 is slidably engaged with the corresponding slanting guiding wall 6535 of the clamping block 651. An bottom end of each second resilient member 67 is mounted in the locating hole 6338 of the corresponding second block 633. A combination of each second block 633 and the corresponding second resilient member 67 is located below the corresponding first block 631, the cutout 6336 aligns with the cutout 6318, and the through holes 6337 of the second block 633 align with the mounting holes 6319 of the first block 631. A top end of each second resilient member 67 is connected to a bottom surface of the corresponding clamping block 651, and the tabs 6323 of the second block 633 are received in the positioning slot 6313 of the corresponding first block 631. A plurality of screws extends through the through holes 6337 of each second block 633, to be mounted in the mounting holes 6319 of the corresponding first block 631. Thus, each first block 631 is mounted to the corresponding second block 633, each clamping member 65 is installed in the corresponding moving member 63, the guiding walls 6535 of the clamping member 65 can be slid with the guiding walls 6310 of the corresponding first block 631, and each second resilient member 67 is sandwiched between the second block 633 and the corresponding clamping member 65 to allow the top end of the clamping member 65 to be exposes out of the top surface of the connecting block 6312.

The second blocks 633 of the moving members 63 are inserted in the rectangular opening 6121 from the top surface of the frame 612, and located at two opposite ends of the rectangular opening 6121. The cutouts 6336 of the second blocks 633 face each other. The guiding bars 6315 of each first block 631 are supported on the top surface of the frame 612. The brackets 615 are respectively supported two opposite ends of the frame 612, each first block 631 is received in the receiving slot 6154 of the corresponding bracket 615, the guiding bars 6315 of each first block 631 are received in the guiding slots 6155 of the bracket 615, and the countersunk holes 6157 of each bracket 615 are aligned with the fastening holes 6123 of the frame 612. A plurality of screws extends through the countersunk holes 6157 of the brackets 615, to be mounted in the corresponding fastening holes 6123 of the frame 612. Thus, the brackets 615 are mounted to the frame 612, the guiding bars 6315 of each first block 631 can be slid in the guiding slots 6155 of the corresponding bracket 615.

A first end of each first resilient member 66 is positioned in the blind hole 6156 of the corresponding bracket 615, and a second end of the first resilient member 66 opposite to the first end is positioned in the fixing hole 6312 of the corresponding first block 631. A gap is formed between the clamping members 65 when the first resilient members 66 in the natural state.

The frame 612 is located above the male mold 50, a top end of the punch 80 extends through the cutouts 6336 of the second blocks 633, to be received in the rectangular openings 6511 of the clamping blocks 651, until the top end of the punch 80 aligning with the top surface of the frame 612??. The guiding walls 91 of each abutting bar 90 respectively face the guiding walls 6335 of the second blocks 633. A bottom surface of the frame 612 is supported on top ends of the third resilient members 68. Thus, the positioning apparatus 60 is installed to the male mold 50, ? the punch 80 aligns with the clamping holes 6513 of the clamping members 65, and the tapered distal end 23 of the positioning pin 21 aligns with the clamping holes 6513 of the clamping members 65. riveting machine of FIG. 3 together with a rivet and a work piece

FIGS. 4-6 illustrate the riveting machine 100 together with a rivet 210 and a work piece 500. The rivet 210 is transported to the clamping holes 6513 of the clamping members 65. The rivet 210 comprises a rivet cap 211 supported on the top surface of the punch 80 and a pin 213 received in the clamping holes 6513 of the clamping members 65. The pin 213 axially defines a position hole 215. showing the riveting machine in a first working state

FIG. 7 illustrates the riveting machine 100 in a first working state, the work piece 500 defining a through hole 501 is transported to the top surfaces of the clamping blocks 651, until the through hole 501 of the work piece 500 substantially aligns with the tapered distal end 23 of the positioning pin 21. The riveting machine 100 is started, the female mold 20 moves toward the male mold 50, the tapered distal end 23 extends through the through hole 501 of the work piece 500 to be inserted in the position hole 215 of the rivet 210. The female mold 20 abuts against the work piece 500 to press the top surfaces of the clamping members 65. The guiding plate 653 of each clamping members 65 slides along the guiding hole 6311 of the corresponding first block 631, the sliding block 655 slides along the sliding hole 6317, and the clamping block 651 slides along the cutout 6318, until the top surfaces of the clamping members 65 are coplanar with the top surfaces of the first blocks 631. At the same time, the clamping members 65 move toward each other along the corresponding guiding holes 6311, to clamp the pin 213 of the rivet 210, and deform the second resilient members 67. Thereby, the rivet 210 is positioned on the top surface of the punch 80, and the pin 213 extends through the through hole 501 of the work piece 500.

FIGS. 8-9 illustrate the riveting machine 100 in a second and a third working states, the female mold 20 further moves toward the male mold 50, the female mold 20 abuts against the work piece 500 to press the first blocks 631. A combination of the clamping members 65, the first blocks 63, and the mounting member 61 slides toward the male mold 50 to deform the third resilient members 68. The guiding walls 91 of each abutting bar 90 slidably abut against the corresponding guiding walls 6335 of the second blocks 633, each moving member 63 slides along the corresponding guiding slots 6155 away from the punch 80, to move each clamping member 65 away from the rivet 210, and deform the first resilient members 66.

FIG. 10 illustrates the riveting machine 100 in a fourth working state, the top end of the punch 90 passes through the clamping holes 6513 of the clamping members 65, until the rivet cap 211 is riveted to the work piece 500. The rivet 210 is mounted to the work piece 500, and a bottom surface of the rivet 210 is coplanar with a bottom surface of the work piece 500.

The female mold 20 moves back, the second resilient members 67, the first resilient members 66, and the third resilient members 68 are restored to bias the clamping members 65, the moving members 63, and the mounting member 61 to back, and the punch 90 is restored. The work piece 500 riveting the rivet 210 is transported out from the riveting machine 100.

Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the present disclosure is illustrative only, and changes may be made in details, including in the matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. 

What is claimed is:
 1. A riveting machine comprising: a male mold comprising a punch configured to support a rivet thereon, and a pair of abutting bars located proximate the punch; a female mold comprising a positioning pin aligned with the rivet; a mounting member slidably attached to the male mold along a vertical direction; a pair of moving members slidably attached to the mounting member along a horizontal direction; a pair of clamping members, each of the pair of clamping members slidably attached to a corresponding one of the moving members and located between the pair of moving members forming a pair of first slanting guiding walls to allow each of the pair of clamping members to slide relative to the corresponding one of the moving members, a pair of second slanting guiding walls extend from a corresponding abutting bar to allow the pair of moving members to slide relative to the corresponding abutting bar; and a work piece having a through hole, wherein when the work piece is placed on the pair of clamping members, the positioning pin extends through the through hole to abut the rivet, the female mold moves toward the male mold to urge the pair of clamping members to slide toward each other to clamp the rivet therebetween, the mounting member is urged to move vertically toward the male mold, the pair of moving members are urged to slide away from each other, and each of the pair of clamping members move away from each other to allow the punch to pass therethrough to move the rivet in the through hole of the work piece.
 2. The riveting machine of claim 1, wherein the clamping members each defines an opening in a lower portion thereof to cooperatively receive the punch therein, a top portion of the clamping member defines a clamping hole located above the opening, to clamp the rivet.
 3. The riveting machine of claim 1, wherein the mounting member comprises a frame, and a pair of U-shaped brackets attached to two opposite ends of the frames, the frame defines a rectangular opening therein to allow the punch and the abutting bars extending there through, the moving members are respectively and slidably attached to the brackets.
 4. The riveting machine of claim 3, wherein the male mold comprises a plurality of connecting hole beside the punch to receive a plurality of third resilient members therein, the third resilient members are sandwiched between the male mode and the frame.
 5. The riveting machine of claim 3, wherein each moving member comprises a first block slidably received in the corresponding bracket, and a second block attached to a bottom of the first block and aligning with the rectangular opening of the frame, each bracket defines a guiding slot in a lower portion thereof, each first block comprises a sliding bar received in the corresponding guiding slot and capable of sliding horizontally.
 6. The riveting machine of claim 5, wherein a first resilient member is located between each bracket and the corresponding first block.
 7. The riveting machine of claim 5, wherein each first block defines a T-shaped guiding hole extending through top and bottom surfaces thereof, and a cutout is defined in an end wall of the first block away from the corresponding bracket and communicating with the guiding hole, each clamping member comprises a guiding plate slidably received in the corresponding guiding hole and a clamping block slidably received in the corresponding cutout, the first guiding walls are respectively and slantingly formed at an inner side of the guiding hole away from the cutout and the guiding plate.
 8. The riveting machine of claim 5, wherein each the second block comprise a substantially semi-cylindrical cutout defined therein and aligning with the corresponding guiding hole, the semi-cylindrical cutout extends through an end wall of the second block away from the bracket.
 9. The riveting machine of claim 8, wherein each the second block comprise a locating hole located beside the semi-cylindrical cutout to receive a second resilient member therein, the second resilient is sandwiched between the second block and the corresponding clamping member.
 10. The riveting machine of claim 5, wherein the second guiding walls are respectively and slantingly formed at a lower portion the second block and a top portion of the corresponding abutting bar. 